3D surface scanners in spine clinic: A pilot study to assess scanner accuracy

The externally visible deformity, in terms of rib hump, shoulder and hip asymmetry and anterior rib asymmetry, is usually the first symptom observed by <i>adolescent idiopathic scoliosis (AIS)</i> patients. Often these cosmetic factors remain the primary concern for patients. Presently, AIS deformity is assessed clinically from standing X-rays using the Cobb angle, the magnitude of which does not correlate well with external appearance or post-surgical satisfaction. Torso rotational deformity (rib hump) is currently assessed by laying a goniometer across the patient’s back while they bend forward. Whilst rapid, this test does not fully encompass all elements of the deformity and fails to address the areas of most cosmetic concern to the patient. Despite enormous variations in price, the accuracy of the scanned deformity was comparable to routine clinical measures. This study presents pilot data to select a suitable scanner for use in future research into AIS progression